Statements of Operations (USD $)	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Revenues (Notes 1 and 8)	$ 182,469,541	$ 169,567,374	$ 173,951,126
Cost of goods sold (Notes 7 and 8)	186,301,560	171,827,633	169,817,362
Gross profit (loss)	(3,832,019)	(2,260,259)	4,133,764
General and administrative expenses	3,224,382	2,955,565	2,649,796
(Gain) loss on sale or disposal of property and equipment (Note 13)	0	489,664	0
Contract settlement fee (Note 7)	0	1,700,000	0
Operating income (loss)	(7,056,401)	(6,426,160)	1,483,968
Other income (expense):
Interest income	4,277	6,957	9,542
Interest expense	(160,068)	(237,565)	(593,461)
Other nonoperating income and expense	(155,791)	(230,608)	(583,919)
Net income (loss)	$ (7,212,192)	$ (6,656,768)	$ 900,049
Weighted average units outstanding	42,049	42,049	42,049
Net income (loss) per unit - basic and diluted	$ (171.52)	$ (158.31)	$ 21.40